JP4674552B2 - Vehicle seat with monitor - Google Patents

Description

  The present invention relates to a vehicle seat with a monitor in which a monitor such as a car navigation system or a television is provided on a back surface of a headrest on an upper surface of a seat back.

For example, as disclosed in Patent Document 1, a monitor for use by a passenger in the rear seat is provided with a storage recess on the back of the seat back, and the monitor main body is incorporated in the storage recess. In this case, since the cushioning property of the seat back is impaired, in order to solve this problem, a monitor body is often provided on the back surface of the headrest on the upper surface of the seat back.
Japanese Patent Laid-Open No. 11-151986

  By the way, when the seat is mounted in the vehicle compartment, generally, the seat cannot be put into the compartment unless the headrest is removed. Naturally, the monitor main body provided on the upper surface of the seat back also needs to be removed in the same manner as the headrest. However, unlike the headrest, the monitor body is connected to a wire harness wired in the seat back. For this reason, in order to remove the monitor body from the seat back, the wire harness must also be disconnected. This increases the work of connecting the wire harness again when the seat is mounted and the monitor body is mounted, and it is not easy to connect the wire harness in a limited space in the vehicle compartment. .

  The present invention is intended to solve such problems, and its purpose is to facilitate and simplify the work of mounting a seat provided with a monitor body on the upper surface of the seat back, and to improve the monitor body after the seat is mounted. An object of the present invention is to provide a vehicle seat with a monitor capable of maintaining good design properties.

The present invention is for achieving the above object, and is configured as follows.
According to one aspect of the present invention, a sheet monitor for a vehicle with the monitor main body to the upper surface seat back is provided, the monitor main body is connected to the seat back side by the actuating mechanism. This operating mechanism can be switched to a standby state in which the monitor body is tilted down on the upper surface of the seat back or a use state in which the monitor body is erected and slid downward, and the monitor body is switched to the standby state or the use state. A fulcrum shaft is provided as the center of rotation. The fulcrum shaft from the standby state until the monitor body stands up is in a position exposed from the lower surface of the monitor body on the upper surface of the seat back. It is configured to move inside.

  According to this configuration, the seat mounting operation can be easily and simplified by setting the monitor main body in a standby state when the seat is mounted in the vehicle compartment and switching to the use state after mounting. In addition, by moving the fulcrum shaft of the operating mechanism originally provided at a position exposed from the lower surface of the monitor body into the seat back when the monitor body is in use, the appearance of the monitor body in the state of use is The coupling gap and the fulcrum shaft with the other side for constituting the hinge do not appear, the appearance of the monitor body is good, and the design is improved.

According to a second aspect of the present invention, there is provided a vehicle seat with a monitor according to the first aspect, wherein the operation mechanism has a monitor main body through a fulcrum shaft with respect to a support bracket fixed in a state of protruding from the upper surface of the seat back. Is configured to be supported so as to be rotatable and slidable. When the monitor body is erected and slid downward, the monitor body covers the support bracket.
In this way, the design of the monitor body can be further improved by covering the support bracket of the operating mechanism with the monitor body in use.

The invention according to claim 3 is the vehicle seat with a monitor according to claim 2, wherein the fulcrum shaft of the operating mechanism slides with respect to the vertical hole portion of the guide hole provided in the support bracket. The monitor body is supported so as to be slidable and rotatable with respect to the horizontal hole portion of the guide hole, and is slidably supported with respect to the fulcrum shaft .
As a result, when the slide stroke of the monitor main body required to switch the monitor main body to the standby state or the use state is constant, the fulcrum shaft with respect to the guide hole of the support bracket is equivalent to the stroke that the monitor main body slides with respect to the fulcrum shaft. The slide stroke can be shortened. Therefore, the height of the support bracket can be reduced and compactly accommodated.

The invention according to claim 4 is the vehicle seat with a monitor according to claim 2, wherein the fulcrum shaft and the support shaft of the operating mechanism are movable with respect to the guide hole provided in the support bracket. It is supported. The support shaft is positioned from the vertical hole portion of the guide hole to the hook-shaped hole portion , so that the monitor body can be rotated around the axis of the fulcrum shaft.

In this case, if the support shaft is positioned in the hook-shaped hole portion of the guide hole in the support bracket, the monitor body can be rotated around the fulcrum shaft and tilted down, and the support shaft can be positioned in the vertical hole portion of the guide hole. If this is the case, the monitor body can be rotated up around the fulcrum shaft to stand up.

The best mode for carrying out the present invention will be described below with reference to the drawings.
(Embodiment 1)
First, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external perspective view showing a main part of a vehicle seat with a monitor. As shown in this figure, a monitor main body 20 is provided on the upper surface 10 a of the seat back 10 of the vehicle seat at the back surface of the headrest 12. The monitor body 20 is arranged with its display screen 21 facing the rear seat.

  FIG. 2 is an exploded perspective view showing the mounting structure of the monitor body 20. FIG. 3 is an external perspective view in a standby state in which the monitor main body 20 is tilted down. In these drawings, the headrest 12 is removed from the seatback 10, and a pair of headrest supports 10b into which the legs of the headrest 12 are inserted can be seen on the upper surface 10a of the seatback 10 (FIG. 2). And the support bracket 30 for supporting the monitor main body 20 is located in the rear part of these headrest supports 10b. The lower portion of the support bracket 30 is fixed to a seat back frame (not shown) inside the seat back 10, and the upper portion is disposed so as to protrude from the upper surface 10 a of the seat back 10.

  The support bracket 30 has left and right side plates 31 and a back plate 32, and guide holes 34 are formed in both side plates 31. These guide holes 34 include a vertical hole 34a extending in the vertical direction, and a horizontal hole 34b extending at a right angle from the upper end of each vertical hole 34a and extending forward of the seat. A lock rod 36 is fixed to the back plate 32 of the support bracket 30 by welding. Both guide holes 34 are designed to have different width dimensions between the vertical hole portion 34a and the horizontal hole portion 34b, and the details will be described later in relation to the support shaft 40.

  A monitor frame 24 is incorporated in the monitor case 22 of the monitor body 20. The lower portions of the side surface plates 25 in the monitor frame 24 are projected from the lower surface of the monitor case 22 to the outside. Long holes 26 that are long in the vertical direction are formed in the lower part of the side plates 25. These long holes 26 are set to have the same width as the vertical hole portions 34 a of both guide holes 34 in the support bracket 30. A guide rod 28 is fixed to the lower portions of the side plates 25 by welding.

  As shown in FIG. 3, the both side plates 25 of the monitor frame 24 are arranged in a state of being superimposed on the outside of the both side plates 31 in the support bracket 30. At this time, the guide rod 28 of the monitor frame 24 is positioned in a state where the guide rod 28 is in light contact with the edges of the side plates 31 in the support bracket 30. Then, both end portions of one support shaft 40 are inserted into both long holes 26 of the monitor frame 24 and both guide holes 34 of the support bracket 30. In addition, processing such as caulking both end surfaces of the support shaft 40 is performed so that the support shaft 40 does not fall out of the monitor frame 24 and the support bracket 30.

  Both end portions of the support shaft 40 are chamfered portions 42 formed by molding two surfaces parallel to the outer periphery thereof, and these chamfered portions 42 are formed in both long holes 26 of the monitor frame 24 and both guide holes 34 of the support bracket 30. Each is located. The dimensions between the two surfaces of the double-sided chamfer 42 on the support shaft 40 correspond to the widths of the vertical holes 34a of the long holes 26 and the guide holes 34, respectively. On the other hand, the outer diameter dimension of the support shaft 40 corresponds to the width of the horizontal hole portion 34b of both guide holes 34. That is, when the relative relationship between the long hole 26 and the guide hole 34 and the support shaft 40 is seen, the support shaft 40 can slide within the long hole 26 and the vertical hole portion 34a of the guide hole 34. The rotation around the axis is restricted to be impossible. On the other hand, the support shaft 40 in the horizontal hole portion 34b of the guide hole 34 can both slide and rotate about the axis.

  On the shaft of the support shaft 40, a spring fastening member 44 is fixed by welding. Similarly, a lock hook 46 is supported on the shaft of the support shaft 40 so as to be rotatable relative to the support shaft 40. A torsion spring 48 is provided between the spring fastening member 44 and the locking hook 46 on the support shaft 40. One end of the torsion spring 48 is engaged with the spring fastening member 44, and the other end is engaged with the locking hook 46. Accordingly, the locking hook 46 receives a biasing force in the counterclockwise direction with respect to the support shaft 40 in FIG.

As described above, the monitor main body 20 (monitor frame 24) is connected to the support bracket 30 fixed to the seat back 10 side by the support shaft 40. The long hole 26 of the monitor frame 24, the guide hole 34 of the support bracket 30, the support shaft 40, and the like constitute the “actuating mechanism” of the present invention. With this operating mechanism, the monitor main body 20 can be switched to a standby state where the monitor body 20 is tilted forward as shown in FIG. 3 or a use state shown in FIG. The support shaft 40 becomes the center of rotation when the monitor main body 20 is switched to the standby state or the use state, and the support shaft 40 corresponds to the “fulcrum shaft” of the present invention.
Next, an operation for switching the monitor main body 20 from the standby state to the use state will be described.

  4 to 5 are perspective views respectively showing a part of the operation mechanism when the monitor main body 20 is switched from the standby state to the use state. As shown in FIGS. 3 and 4, when the monitor main body 20 is in the standby state, both end portions (the chamfered portions 42) of the support shaft 40 are positioned in the horizontal hole portions 34 b of the both guide holes 34 in the support bracket 30. The guide rod 28 is in light contact with the upper edges of the side plates 31 of the support bracket 30. By pulling the monitor main body 20 to the right in FIG. 3 from this state, the support shaft 40 is guided and slid by the horizontal holes 34b of both guide holes 34. Slide in the direction. When the support shaft 40 reaches near the intersection with the upper end of the vertical hole 34a in each horizontal hole 34b, the monitor body 20 is raised around the axis of the support shaft 40.

  As described above, the support shaft 40 can rotate in the horizontal holes 34 b of both guide holes 34 and cannot rotate in the long holes 26 of the monitor frame 24. Therefore, the support shaft 40 rotates with respect to the support bracket 30 together with the monitor frame 24 as the monitor main body 20 is raised. Thus, both end portions (chamfered portions 42) of the support shaft 40 can be positioned in the individual vertical hole portions 34a in the both guide holes 34 (FIG. 5). Since the support shaft 40 in these vertical holes 34 a is not rotatable, the monitor main body 20 is kept upright with respect to the support bracket 30. At this time, the guide rod 28 is in contact with the front edges of the side plates 31 in the support bracket 30 (FIG. 5), and this also assists the holding of the monitor body 20 in an upright position.

  Subsequently, by sliding the support shaft 40 downward along the vertical hole portions 34a of the guide holes 34, the monitor main body 20 is slid downward while being kept in an upright state. In addition to this, the monitor body 20 slides with respect to the support shaft 40 by the stroke of both the long holes 26 of the monitor frame 24 (FIG. 6), and is switched from the standby state to the use state. As the monitor body 20 slides, the locking hook 46 passes through the locking rod 36 while rotating against the urging force of the torsion spring 48 and then engages with the locking rod 36. As a result, the monitor body 20 is locked in use.

  Thus, the seat can be easily mounted in the vehicle compartment by placing the monitor main body 20 in a standby state in which the monitor main body 20 is brought into the space after the headrest 12 is removed. After the seat is mounted, the monitor main body 20 can be switched to the use state with a simple operation. This eliminates the need to remove and reconnect the wire harness of the monitor main body 20 when mounting the seat, thereby improving workability.

  Further, the guide rod 28 and the support shaft 40 (fulcrum shaft) until the monitor main body 20 is raised from the standby state are exposed from the lower surface of the seat back 10, and the monitor main body 20 is slid to the use state. As a result, the support shaft 40 enters the interior of the seat back 10 together with the hook 46 and the torsion spring 48 (FIG. 6). In addition, the support bracket 30 and the guide hole 34 of the operating mechanism are covered from the outside by the monitor case 22 of the monitor body 20. As a result, the design of the monitor main body 20 in use is improved.

  The support structure of the monitor body 20 is designed based on the usage state. Therefore, in order to bring down the monitor main body 20 from the use state to the horizontal standby state, a predetermined vertical stroke required for it must be secured. In the present embodiment, the monitor main body 20 is configured to slide with respect to the support shaft 40 by the strokes of the two long holes 26 of the monitor frame 24. Therefore, the support shaft 40 with respect to the vertical hole portion 34a of the guide hole 34 correspondingly. The slide stroke can be shortened. That is, the length of the vertical hole 34a can be shortened, and thereby the height of the support bracket 30 can be reduced.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 7 is an external perspective view showing a use state of the monitor main body 20 in the second embodiment. As is clear from this figure, the side plate 131 of the support bracket 130 in the second embodiment is set to have a larger vertical dimension than the support bracket 30 of the first embodiment. That is, the support bracket 130 is disposed closer to the lower side and lower side of the seat back 10 shown in FIGS. It can be secured greatly.

  Guide holes 134 are formed in both side plates 131 of the support bracket 130, respectively. These guide holes 134 are composed of vertical hole portions 134a extending in the vertical direction and hook-shaped hole portions 134b bent in an arc from the upper ends of the individual vertical hole portions 134a. In addition, regarding the guide holes 134, unlike the guide holes 34 of the first embodiment, the widths of the vertical holes 134a and the hook-shaped holes 134b are set to be the same. Further, the support bracket 130 includes a locking rod 136 supported at both ends at the lower part of both side plates 131.

  Both side plates 25 of the monitor frame 24 in the monitor main body 20 are respectively arranged in a state of being superimposed on the outside of the both side plates 131 in the support bracket 130. Both ends of the support shaft 140 inserted through the guide holes 134 of the support bracket 130 are fixed to the lower portions of the side surface plates 25, respectively. On the shaft of the support shaft 140, a spring fastening member 44, a locking hook 46, and a torsion spring 48 are provided, respectively, as in the first embodiment. In addition, guide shafts 50 are fixed to both side plates 25 of the monitor frame 24 below the support shaft 140. These guide shafts 50 are respectively engaged with the corresponding guide holes 134.

  Also in the second embodiment, the “actuating mechanism” of the present invention is configured mainly by the guide shaft 50 of the monitor frame 24, the guide hole 134 of the support bracket 130, the support shaft 140, and the like. By this operating mechanism, it is possible to switch from the standby state in which the monitor body 20 is tilted forward to the use state shown in FIG. In order to place the monitor body 20 in the standby state, the monitor body 20 is slid upward with respect to the support bracket 130. Thus, if the support shaft 140 is positioned in the hook-shaped hole 134b from the individual vertical holes 134a in the both guide holes 134, the monitor main body 20 is rotated about the axis of the both guide shafts 50 and tilted forward. Can do. That is, in the second embodiment, the two guide shafts 50 become the rotation center when the monitor main body 20 is switched to the standby state or the use state, and these guide shafts 50 correspond to the “fulcrum shafts” of the present invention.

  8 to 10 are perspective views respectively showing a part of the operation mechanism when the monitor main body 20 is switched from the standby state to the use state in the second embodiment. As shown in FIG. 8, when the monitor main body 20 is in the standby state, both guide shafts 50 of the monitor frame 24 are respectively positioned at the upper ends of the vertical hole portions 134 a of the guide holes 134 in the support bracket 130. Further, both end portions of the support shaft 140 are respectively located in the hook-shaped hole portions 134 b of the both guide holes 134. Therefore, by rotating the monitor body 20 around the axis of both guide shafts 50, both ends of the support shaft 140 are also moved to the vertical holes 134a of both guide holes 134, and the monitor body 20 stands up (FIG. 9).

  In the state where the monitor main body 20 is erected, both ends of the both guide shafts 50 and the support shaft 140 are positioned in the vertical hole portions 134a of the both guide holes 134, so that the monitor main body 20 is erected with respect to the support bracket 130. Kept in a state. While the guide shaft 50 and the support shaft 140 are guided by the vertical holes 134a of the guide holes 134, the monitor body 20 is slid downward (FIGS. 7 and 10). As a result, the monitor main body 20 becomes in use, and the lock hook 46 engages with the lock rod 136 and is locked.

  As described above, also in the second embodiment, by switching the monitor main body 20 from the standby state to the use state, the seat mounting operation in the vehicle compartment is simplified as in the first embodiment. Further, the support shaft 140 and both guide shafts 50 (fulcrum shafts) exposed from the lower surface of the seat back 10 enter the inside from the upper surface 10a of the seat back 10 by sliding the monitor body 20 to the use state (FIG. 10). . In addition, the support bracket 130, the guide hole 134, and the like of the operating mechanism are covered and hidden from the outside by the monitor case 22 of the monitor main body 20, and the designability of the monitor main body 20 in use is maintained.

  In particular, in the second embodiment, when the height of both side plates 131 in the support bracket 130 can be sufficiently secured, that is, the slide strokes of the guide shafts 50 and the support shafts 140 that move up and down along the vertical holes 134a of the guide holes 134 are reduced. Suitable when there is no need to shorten. As a result, it is possible to omit the machining of both the long holes 26 of the monitor frame 24 or the chamfered portions 42 at both ends of the support shaft 40 in the first embodiment.

  In addition, when the connector etc. which connect the wire harness of the monitor main body 20 are improved and the connection or removal operation is simplified, the structure which removes the monitor main body 20 from the seat back 10 is also employable. For example, in the case of the first embodiment, both guide holes 34 of the support bracket 30 are configured only by the vertical hole portions 34a whose upper ends are opened. As a result, when the monitor body 20 is slid upward, the support shaft 40 can be extracted from both the vertical holes 34 a, and the monitor body 20 can be detached from the support bracket 30.

External perspective view showing the main parts of a vehicle seat with a monitor An exploded perspective view showing the mounting structure of the monitor body External perspective view showing the monitor's standby state A perspective view showing a part of the operating mechanism when the monitor body is in a standby state A perspective view showing a part of the operating mechanism when the monitor body is raised A perspective view showing a part of the operating mechanism when the monitor body is in use External appearance perspective view showing the use state of the monitor body in the second embodiment The perspective view showing a part of operating mechanism when the monitor main body of Embodiment 2 is in a standby state The perspective view showing a part of operating mechanism when the monitor main body of Embodiment 2 is stood up The perspective view showing a part of operating mechanism when the monitor main body of Embodiment 2 is in use condition

Explanation of symbols

10 Seat back 10a Upper surface 20 Monitor body 40 Support shaft (fulcrum shaft)
50 Guide shaft (fulcrum shaft)

Claims (4)

A seat for a monitor with a vehicle that monitors body is provided on the upper surface seat back,
The monitor main body is connected to the seat back side by an operating mechanism, and this operating mechanism can be switched to a standby state where the monitor main body is pushed down on the upper surface of the seat back or a usage state where the monitor main body is erected and slid downward. There is also a fulcrum shaft that becomes the center of rotation when the monitor main body is switched to the standby state or the use state, and the fulcrum shaft until the monitor main body stands up from the standby state is located on the upper surface of the seat back. A vehicle seat with a monitor, which is located at a position exposed from the lower surface, and is configured such that the fulcrum shaft moves into the seat back by sliding the monitor main body into use. The vehicle seat with a monitor according to claim 1,
The operating mechanism is a structure in which the monitor main body is supported so as to be able to rotate and slide through a fulcrum shaft with respect to a support bracket fixed in a state protruding from the upper surface of the seat back. When the monitor main body is erected and slid downward In addition, a vehicle seat with a monitor configured such that the support bracket is covered by the monitor body. A vehicle seat with a monitor according to claim 2,
The fulcrum shaft of the operating mechanism is supported to be slidable with respect to the vertical hole portion of the guide hole provided in the support bracket , and is supported to be slidable and rotatable with respect to the horizontal hole portion of the guide hole. The body is a vehicle seat with a monitor that is slidably supported with respect to the fulcrum shaft. A vehicle seat with a monitor according to claim 2 ,
The fulcrum shaft and the support shaft of the operating mechanism are supported so as to be movable with respect to the guide hole provided in the support bracket, and the support shaft is positioned from the vertical hole portion of the guide hole to the hook-shaped hole portion , so that the monitor body A vehicle seat with a monitor, which is configured to be capable of rotating the shaft around the axis of the fulcrum shaft.

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